Datasheet

INA330
3
SBOS260
www.ti.com
ELECTRICAL CHARACTERISTICS: V
S
= +5V
BOLDFACE limits apply over the specified temperature range, T
A
= –40°C to +85°C
At T
A
= +25°C, V
1
= V
2
= +1V, V
ADJUST
= +2.5V, R
SET
= 10kΩ, R
THERM
= 10kΩ, R
G
= 200kΩ, C
FILTER
= 500pF, external 1kHz filtering, unless otherwise noted.
INA330
2
3
10
1
95
4
V+
V
2
V
EXCITE
1V
V
1
6
Enable High = On
Low = Off
8
7
I
1
I
2
R
SET
10kΩ
R
G
200kΩ
Thermistor
R
THERM
= 10kΩ
C
FILTER
500pF
I
O
= I
1
– I
2
V
O
V
ADJUST
= +2.5V
NOTES: (1) Total errors in voltage seen between pin 1 and pin 10. (2) See Figure 2.
TEST CONFIGURATION
PARAMETER CONDITION MIN TYP MAX UNITS
VOLTAGE EXCITATION BUFFERS
Voltage Range R
SET
= 10kΩ, R
THERM
= 10kΩ 0.1 1.25 V
R
SET
= 100kΩ, R
THERM
= 100kΩ 0.1 to 4.9 V
Offset Voltage V
OS
V
S
= +5V, V
1
– V
2
= 0 ±60 µV
vs Temperature ∆V
OS
±0.2 µV/°C
vs Power Supply PSR V
S
= +2.7V to +5.5V, V
1
– V
2
= 0 3 µV/V
Offset Voltage Match
(1)
±30 µV
vs Temperature 0.2
µV/°C
Input Bias Current I
B
±0.2 nA
Output Current +125 µA
CURRENT CONVEYOR
(2)
Gain Equation I
O
= I
1
– I
2
Current Output Range ±12.5 µA
Voltage Compliance Range 0.075 4.925 V
Gain 1A/A
Gain Error V
O
= +0.075V to +4.925V ±0.1 ±0.2 %
Current Offset Error I
ERROR
I
1
= I
2
±100 ±200 nA
Change Over Temperature +25
°C to +85°C, or +25°C to –40°C ±40 nA
vs V
1
, V
2
V
1
= V
2
= +0.1V to +1.25V ±100 ±200 nA/V
vs Power Supply 25 nA/V
Noise Current 12 pA/√Hz
f = 0.01Hz to 10Hz 500 pAp-p
OUTPUT BUFFER
Voltage Output Swing-to-Rail R
L
= 100kΩ 5mV
R
L
= 10kΩ 75 10 mV
Offset Voltage 30 µV
vs Temperature dV
OS
/dT 0.1 µV/°C
Input Bias Current
Included in I
ERROR
Short-Circuit Current I
SC
±25 mA